Backwards compatibility issues with NATS Client

[tpelabon]

We uses NATS.Client in our code but nBomber is using an older version which creates conflicts for us, and we cannot downgrade as we need feature used in 1.1.2.

Our workaround is for us to remove our usage of NATS immediately. But this is only a temporary solution because we will have it soon as a hard requirement. We are using NATS JetStream, which is not available in the outdated NATS client NBomber is referencing to. And Upgrade should be harmless. Our problem is that NATS client changed their connection interface and thus the library is breaking now. I would suggest

1. Updating NATS client to > 1.1.0
2. Pin the version within the minor so only >1.1.0 and < 1.2.0 is allowed. This gives clear compile errors rather than the runtime errors we see. NATS seems to break backwards compatibility within minor versions.

/ # nats-server --version
nats-server: v2.10.7 (edited) 

But the issue is not the NATS server version, its that the client broke backwards compatibility but its not detected proper (because NBomber does not define a < version requirement). I have to say, its shitty from NATS to break it, because I would assume backwards compatiblity between minor versions